Identify The Name of This Tool(s)?

Reggierj

Junior Member
Hello Everyone,

I have attached screen caps of a tool(s) the build referred to as "1 2 3 blocks". Does anyone know if that's the actual name of these (or similar item) and where I might find them?

1_2_3_Block3.png 1-2-3_Block.png 1_2_3_Block2.png